Bolt shrugs off Blake questions

Triple Olympic champion Usain Bolt has responded to reports that training partner Yohan Blake is one of five Jamaican athletes to have tested positive for a banned substance.

The athletes - four men and one woman - are not thought to be any of the Olympic medal winners from last summer's Games in Beijing.

Blake is part of Racers Track Club along with Bolt and ran the second leg on Saturday as a club quartet anchored by Bolt won the 4x100 relay metres at the Aviva London Grand Prix in 37.46 seconds, the fourth fastest time in history. Asked if he had reassured Blake, Bolt replied: "No, he's all right, he's all right."

Blake declined to comment to waiting reporters after the race.

Talking about the five positive tests, Bolt said: "We have to wait until the B sample is tested first before we know if it's serious or it's not.

"It didn't sound it (serious) but we don't know anything really. We have to wait for a press release.

"We're not sure exactly what (the substance is), they have to wait until the second test to be sure of what's what or what should be done."

After taking the tape in the relay, the quartet of Daniel Bailey, Blake, Mario Forsythe and Bolt were initially disqualified from the race, but were reinstated to first place when officials studied footage of the changeover between Bailey and Blake and decided it was legal.

"I didn't feel very warm out there, we were standing for a while," added Bolt, who won the 100m on Friday night in 9.91 seconds. "It was a good race, a good team effort, we did well. The team executed well and got the baton round.

"We didn't do a lot of baton changing but we train together so I guess we know how fast we can go. Over time with a bit more training we could be faster."